n naudey



- (Np-Qlodel.) 3 Sheets-Sheet 1.

N. NAUDEY.

v SAWINGMAGHINE. No. 371,211. Patented Oct. 11,1887.

045 Z'aa i 1 Jnremi'm (No Model.) 3 Sheets-Sheet 2.

N. NAUDEY.

SAWING MACHINE.

No. 371,211. Patented Oct. 11,1887.

fi z/ 5525..

3 Sheets--Sheet 3.

(No Model.)

N. NAUDEY.

SAWING MACHINE.

Patented 001;. 11, 1887.

UNITED STATES PATENT OFFICE.

NICOLAS NAUDEY, OF oUsE, nouns, FRANCE.

SAWlNG-MACHINE.

SPECIFICATION forming part of Letters Patent No. 371,211, dated October11, 1887. Application filed June 11,1887. Serial No. 241,041. (Nomodel.) Patented in France October 2, 1886,No.178,7'22.

To aZZ whom it may concern.

Be it known that I, NICOLAS NAUDEY, a citizen of the French Republic,residing at Cuse, Department of Doubs, in the French Republic, haveinvented certain new and useful Improvements in Sawing-Machines, (forwhich I have obtained Letters Patentin France, No. 178,722, bearing dateOctober 2, 1886;) and 1 do hereby declare that the following is a full,clear, and exact description of the invention, which will enable othersskilled in the art to which it appertains tomake and use the same.

Referring to the drawings, Figure 1 is a front elevation, and Fig. 2 aside elevation, of my improved sawing-machine. Fig. 3 is an enlargedside view of one of the bearings for the rock-shaft, showing said shaftin end elevation. Fig. 4 is a detached elevation of the upper portion ofthe frame, showing the bearings for the rock-shaft in section. Fig. 5isan enlarged side elevation of Fig. 4; Fig. 6, a transverse section ofthe rock-shaft, showing the means of securing the counter -weightthereto. Figs. 7 and 8 are side views of a portion of the upper end ofthe frame, showing the'different positions of the counter-weight insawing; and Fig. 9 is an isometric view of a portion of the rock'shaft.

This invention relates to improvements in sawing-machines, and hasforits object to relieve the operator as much as possible from the laborinherent to the operation of sawing; and it consists in the constructionof the machine and in the combination of the parts thereof,substantially as hereinafter described, and as set forth in the claims.

The frame F of the machine has, as shown, the general form of an easel,the shorter legs or braces, F being hinged atf to the longer legs orstandards, F, so as to adapt the frame to be folded together when not inuse. The shorter legs or braces, F are con nected together by means ofcross-bracesf and the standards or legs F are connected together bycross braces f. The cross-braces f are further strengthened by a thirdor central standard, F, that also affords a more stable bearing to theframe and renders it less liable to sway or rock with the motion of thesaw, or in a direction at right angles thereto. A fourth vertical brace,F, connects the upper and intermediate crosspieces f. To each standard Fand F and to the left-hand standard, F, is secured a cheekpiecaf, thathas a plurality of holes or sockets for the reception of a restbar, It,said holes or sockets being so formed that the rest bars R will lie atan angle to the standards for the reception of the log of wood, as moreplainly shown in Fig. 2, said rest-bars being adjustable vertically onthe cheek-pieces, according to the thickness of the log, by placing themin one or the other of the holes or sockets of the cheek-piecef.

Upon a bolt or pin, p, (shown in dotted lines in, Figs. 1 and 2,)secured to the standards F F, is pivoted a toothed segment-lever, 0,provided with a hand-hold, c, for holding the log of wood on itssupports.

To the upper end of each standard F are bolted bearing-blocks B, soconstructed as to form an ellipsoidal hearing, I), for thecorrespondingly 6r cam shapedjournal s of a rockshaft, S, that ispreferably square in cross-seo- 'tion, as more plainly shown in Figs. 3,6, 7,

and 9. About centrally of the cross-shaft is secured a weight, XV, soconstructed that its center of gravity, when the weight is in a verticalposition, will coincide with the longer axis of the journals 8 of theshaft S. As shown in Fig. 6, the weight is secured to one side of theshaft by means of an eyebolt, D, that extends through said shaft andembraces the stem or shank w of the weight, and by means of a nut, d,that works on the screwthreaded end of said bolt.

It will be seen that by the described construction of the journals andjournal-bearings of the shaft S said shaft has practically knifeedgebearings, so that the friction between the shaft and its bearings isreduced to a minimum. It will further be observed that by arranging theweight Wso that its center of gravity will lie in the plane of thelonger axis of thejournals s of the shaft S the deadcenters of thelatter are not only readily overcome, but a comparatively small amountof power is required to rock the shaft in its bearings. Further thanthis, the weight W is so constructed that it will exert its greatestpower during the effective stroke of the saw-that is to say, when thesaw meets with the greatest resistance to its passage through the wood-ICO thereby materially reducing the power necessary to the effectivework of the saw.

From the shaft S is suspended a yoke, Y, by means of a bolt, g], onwhich said yoke is revoluble, so as to permit the cutting on lines otherthan straight lines, or lines at right angles to the longitudinal axisof the shaft. The arms of the yoke are braced together by means ofbraces 3 y", the lower brace, y being provided with perforated lugs orears y (shown in dotted lines in'Fig. 1,) to which the buck.

, saw-frame is connected by means of a link, y",

The brace to which the link is connected, is adjustable vertically inthe yoke, the arms of which are provided with holes 1', Fig. 2, for thispurpose.

From the above description the operation of the machine will be readilyunderstood, and needs, therefore, no further elucidation.

Instead of a bueksaw, any other form of crosscut-saw may be employed.

Having now particularly described my invention, what I claim is 1. In asawingmachine, the combination of a rock-shaft supported by and workingon knife edge bearings, with a saw and a rigid yoke, to one end of whichsaid saw is pivoted, and a pivot-bolt connecting the other end of theyoke to the shaft, substantially as and for the purpose specified. f

2. In a sawing-machine, the combination of the followinginstrumentalities: a frame composed of long and short legs pivotallyconnected. a rock-shaft supported by and working on knife-edge bearingsat the upper end of the longer legs of the frame, a counter-weightsecured to the rock-shaft, a rest for the wood to be sawed,adj ustabletoward and from the rock shaft on the frame, a saw, a yoke to one end ofwhich the saw is pivotally connected by means of a link, and a boltsecured to' the rock-shaft on which the other end of the yoke ispivoted, substantially as and for the purposes specified.

In testimony that I claim the foregoing I have hereunto set my hand this25th day of March, 1887.

NICOLAS NAUDEY.

W itn esses:

R0131. M. HOOPER, LEON SOHMITTBUHL.

